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  1. 24 lut 2023 · A child may notice that their heart is beating fast if they are nervous or scared, they have a fever, they have had too much caffeine, they have taken a stimulant medication, they have been running or exercising, or if they have another medical condition such as low blood sugar or a low blood count.”

  2. Tachycardia (Fast Heart Rate) in Children. Tachycardia is faster than usual heart rate. For newborns, a resting heart rate of more than 160 beats/minute is considered tachycardia. For teenagers, the number is 90 beats/minute.

  3. Our expert answers a question on what can cause a rapid heart rate in children and adults, and how any problems can be diagnosed.

  4. 15 gru 2023 · Causes. Tachycardia is an increased heart rate for any reason. If a fast heart rate is caused by exercise or stress, it's called sinus tachycardia. Sinus tachycardia is a symptom, not a condition. Most heart conditions can lead to different forms of tachycardia. Irregular heart rhythms, called arrhythmias, are one cause.

  5. Symptoms of supraventricular tachycardia in children may include: Heart palpitations — an uncomfortable sensation caused by the heart beating hard and fast. Rapid heartbeats that occur suddenly and randomly; Chest pain; Dizziness; Syncope (fainting or collapsing), which rarely happens with SVT

  6. Some children, particularly young adults, are aware of rapid heartbeats that are due to the speeding up of the heart that naturally occurs in response to exercise or stress. This is called sinus tachycardia and is normal.

  7. 7 mar 2024 · SVT is a heart rhythm disorder that causes a very fast or erratic heartbeat. The heart may beat more than 150 times a minute. Know the symptoms and when it's treated.

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